feat: add plan granularity constraint to plan-phase and creator

agents/creator.md

@@ -46,8 +46,16 @@ For the full output format (including Mini-Reflect, Alternatives Considered, and
 | <option B> | <reason> |
 
 ### Changes
-1. **`path/file.ext`** — What changes and why
+1. **`path/file.ext:line`** — What changes and why
+   ```language
+   <target code state>
+   ```
+   **Verify:** `<command to confirm correctness>`
 2. **`path/test.ext`** — What tests to add
+   ```language
+   <test code>
+   ```
+   **Verify:** `<test command>`
 
 ### Test Strategy
 - <specific test cases>
@@ -72,6 +80,7 @@ For the full output format (including Mini-Reflect, Alternatives Considered, and
 - Name every file. The Maker needs exact paths.
 - Scope ruthlessly. Adjacent problems go under "Not Doing."
 - Include test strategy. No proposal is complete without it.
+- **Granularity:** Each change item must be a 2-5 minute task with exact file path, code block showing the target state, and a verify command. If an item would take >5 minutes, split it. If a non-trivial task has <2 items, you under-specified.
 - Any Confidence axis < 0.5? Flag it — the orchestrator may pause or escalate.
 
 ## Status Token